Recently, my brother's computer started to act up (I was on holiday at the time, June 19th - July 4th, so I am absolved of any suspicion ). BSODing all of the time, for me mainly in games (for him at other times). That was only half the problem - you were lucky to get it to reboot in some instances, because it kept BSODing while it was booting back up. Sometimes I could get to the login page, but even then, it BSODed on that page (and after logging in, before finishing loading up Windows...). The problem has been traced to a faulty memory stick, and my brother replaced it.
----material unrelated to a "Hardware Problems" thread edited/removed. --Admin Nightwatch
What would the main effects be of a faulty memory stick? Aside from the horrendous randomness of it, which, two weekends ago, let me play Stalker, Jedi Academy and UT2004, all without issues (okay I crashed Stalker and Jedi Academy, but the latter was to do with lots of reloading). That was the calm before the storm... It has been replaced, like I said, and it was one of at least two (my brother would know more than me). We had to rely on the other until he got a new one to include in the computer.